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Another plus — the RP4-CH11 interface eliminates the need for the secondary steering wheel control interface (SWI-CAN or SWI-CAN2) that's usually required for these Chrysler-built vehicles, saving you some more cash. Warranty: 1 year.

Important Note: If you have a factory amp in your vehicle, you'll lose the ability to fade from front to rear when you install a new car stereo. (See Details.) See Details for a list of compatible car stereos.

Please enter your vehicle information or call an Advisor at 1-888-955-6000 to find out if this model is compatible with your vehicle.

Note: Most vehicles will require additional installation parts  please identify your vehicle if you haven’t done so, then check here for a list of parts. You can also call an Advisor for more information.

Product Research

Features

Overview: The RadioPro4 (RP4-CH11) is a radio replacement
and SWC (steering wheel control) interface that comes pre-loaded with amplifier
retention and SWC software, navigation based output signals, and firmware that
retains all of the vehicle's original safety and convenience features when
replacing the factory radio with an aftermarket head unit.

Functionality: The RP4-CH11 interface allows the replacement of a factory radio
in select Chrysler/Dodge/Jeep vehicles with MSCAN or LSFT-CAN databus radios.
Using this interface will retain factory features such as steering wheel
controls (SWC), vehicle entertainment system (VES), and the factory audio
amplifier whenever the original radio is removed. The RP4-CH11 also provides
data bus driven outputs such as retained accessory power (RAP), vehicle speed
sensor (VSS), illumination, reverse trigger, and parking brake.

Vehicles with a factory amplifier: The
factory amplifier only accepts two channels of audio input (left/right).
Connect the front outputs of the aftermarket radio to the rear inputs of the
vehicle connector. This will allow navigation voice prompts and Bluetooth
calls to be heard. The rear speaker outputs of the aftermarket radio are not
used. Fading is not supported in this application. The factory amplifier's
fading is controlled by data communication from the factory radio. Neither
the aftermarket radio or the interface have the ability to control the
amplifier's fader.

Wiring Connection Chart: Only one of the two provided radio harnesses
will be used.

Wire Color

Function

Red

+12 Volt Accessory

Yellow

+12 Volt Constant

Black

Ground

Blue

Power Antenna

Blue/White

Amp Turn On

Orange/White

Illumination

White

Left Front Speaker +

White/Black

Left Front Speaker -

Gray

Right Front Speaker +

Gray/Black

Right Front Speaker -

Green

Left Rear Speaker +

Green/Black

Left Rear Speaker -

Violet

Right Rear Speaker +

Violet/Black

Right Rear Speaker -

Red/White

Parking Brake Detection (-)

Purple/White

VSS Output

Green

Reverse Output (+)

SWC Compatible: The interface comes pre-programmed for
all of the vehicle's factory SWC functions and does not require programming,
unless you wish to re-assign the SWC functions to different buttons. The SWC
functions can be easily programmed; see control settings and functions below.
The interface retains programming even if your vehicle's battery is
disconnected.

Switch
Position

1

2

3

4

5

7

Radio

Alpine

JVC

Kenwood

Clarion

Valor

Dual

Pioneer

Sony

Control Functions

Volume +/-

Volume +/-

Volume +/-

Volume +/-

Volume +/-

Volume +/-

Volume +/-

Volume +/-

Mute

Mute

Mute

Mute

Mute

Mute

Mute

Mute

Source

Source

Source

Source

Source

Source

Source

Source

Preset +/-

Track +/-

Play

Search +/-

Track +/-

Preset +/-

Preset +/-

Preset +/-

Track +/-

Band/Disc +

Track +/-

Band

Cursor up/down

Track +/-

Track +/-

Track +/-

Power

Preset/Disc -

Disc/FM +

Send

OK

Band

Band

Band

Play/Enter

Select

Disc/AM -

End

***

***

Phone Menu

***

Band/Program

Attenuation

Answer

***

***

***

Answer Call

***

Receive (phone)

Phone Receive/Reject

***

***

***

***

End Call

***

End

Voice Dial

***

***

***

***

Voice Activation

***

***

Power

***

***

***

***

***

***

Note: The SWC
harness contains a Blue/Yellow wire and a 3.5mm connector. You will only use one
of the connectors, based on your type of aftermarket radio. The Blue/Yellow wire
supports Kenwood, Newer JVC, OEM and Blaupunkt radios. The 3.5mm jack
supports Alpine, Older JVC, Clarion, Pioneer, Sony, Valor, and Dual radios. Not compatible
with Soundstream head units.

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to help people make informed choices.

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what a great can bus interface

Whoosh great interface installed with Pioneer double din head unit very pleased with performance just plug and play all steering wheel controls work flawlessly. And I have a the 6 speaker system without amplifier and it brought the factory speakers to life the Pioneer head unit FH-X820BS awesome unit it has Bluetooth and xm ready

Pros:Fast to install and just power up car and u r set make sure to read instructions carefully

the only thing that works for 2005 Durango

Purchased a new Kenwood unit for my wife's Durango, was offered an adapter made by IDatalink. That worked when it wanted to. We had to toggle the key twice to get the amp to turn on- everytime the car was shut off. Apparently the manufacturer was having firmware problems with older Chysler cars with infinity systems and they sent me a few "beta firmware " to try. None worked unfortunately for this application and they probably have a great product, just not for my car. Finally called Crutchfield and was going to buy something different. They offered a flat out replacement to this PAC unit. Unit was also an snap to install and wire. Bingo!! Start the car and my wife has her music. Can't ask for more!! Outstanding customer service by Crutchfield !! I will buy again from them.

Worked Great!

Just what i wanted, my steering wheel controls worked perfectly at first power-up. Couldn't be happier with the install and that my controls worked as prescribed. Crutchfield strikes again - perfect product and integration. So easy and just great experience. I called tech support 3 separate times for a couple quick questions - I received the help needed to make the installation easy and seamless!!

Worked perfectly

Product manual not great but fairly easy to figure out after looking at it for a few minutes. Worked perfectly after installation. Fader controls did work in my application even though th manual said that it would not.

Works Great

This item works as designed. I wanted a basic item which would retain my steering wheel controls, and other basic functions. It works great out of the box, and doesn't require any programming. I'm not utilizing any of the speaker outputs, nor factory amp turn-on -- as I bypassed my factory amp. For what I needed, this item works great.

Works fine. The instructions need to be better

The product interfaces with the vehicle remote but the instructions need to be clearer. It seemed so illogical to hook both from and the rear onto the same channel but after Crutchfield's right on advice...all is good

Pros:It works. Call Crutchfield for help. Top notch

Cons:A few more words are needed in the instructions. Weak. Without Crutchfield's service, getting hooked up would have been a bit more trying.

Excellent Product

This interface works great in my 2005 jeep grand cherokee limited. It has the the boston acoustics sound system with factory amplifier and everything works like it should (including steering wheel controls) with my aftermarket double-din JVC receiver. Wires are all color coded to match aftermarket receiver making it very easy to match up wires. Once the interface was wired up and the vehicle was powered on, it only took a few seconds for the receiver to power on. At first i thought this was a little pricey but i am very satisfied with it. Only thing i can say that could be negative is that you will need a decent size dash cavity to fit everything back in behind the receiver due to all the extra wires.

NOT HARD

WORKED GREAT ON MY 2012 JEEP WITH PIONEER FX700, HAD TO LOOK AT IT AND THE DIRECTIONS BUT PLUGGED IN AND WORKS GREAT, I DID NOT HAVE TO SET ANY THING AND MY STEERING WHEEL CONTROLS WORK LIKE THEY DID. ON THE WIRING FROM THE RADIO TO THE PLUG IT WAS ALL COLOR CODED SO I JUST PUT THE LIKE COLORS TOGETHER

Pros:EASY HOOKUP

Cons:NEED TO LOOK AT DIRECTIONS CLOSELY AS THEY ARE NOT THE SIMPLEST TO GET

not too happy with this

Ok this harness was easy to plug in and splice with other wires. My complaint is that I was deceived to purchasevthis without being told that my receiver was steering wheel control incompatible. After numerous calls with customer service, I was finally explained this and was dissatisfied. Customer service did not offer any remedy.

Crutchfield response on Monday, August 18, 2014The PAC RP4-CH11 is required to make a vehicle's steering wheel controls work with a new receiver. Unfortunately, the customer initially purchased a receiver that was not compatible with steering wheel controls. After talking with our customer service team, they were able to help him select a different receiver that does work with his steering wheel controls, in which case this adapter is needed.

It works!

Well the unit does what it says. Easy to hook up, the only thing I realized was that a 4 pin wire adapter for data control was missing. I called Crutchfield and they were very supportive and sent me a new one right away. One I got it, it was a quick install and works fine. The only thing it doesn't do is display the radio station in my Chrysler 300C where my trip meter is.

Not Impressed

I purchased this adapter with a Kenwood head unit so that I could keep my steering wheel controls. First let me say that the installation instructions were horrible. Second, after numerous calls to get it connected, it does not work very often. I took it out, put the old radio in and everything works fine. Re-installed the new unit and this adapter and same issues. It doesn not work every time. It was a total waste of money.

Works well enough, could be easier to customize

Setting this up is fairly easy, if you want the defaults, and if your car has the right harness/factory radio setup.

However, if you have the Boston Acoustics factory amplifier, but it has the "normal" harness (like my 2007 Jeep Patriot), you have to wire the head-end unit's from speakers to the cars rear speakers, and you only get 2 channels of audio. It would be nice if the RP4-CH11 provided full amp control, which the factory radio is able to do.

Beyond that, the ability to customize steering wheel controls is nice, but way harder than it needs to be. The documentation is vague, the timeout is extremely short (7 seconds!), and it's confusing as to what some of the commands do.

However, I like that I at least *can* customize the controls, so at least that's something.

Pros:- Does the job
- Can be customized

Cons:- Instructions are vague on programming
- Programming timeout is too short
- Does not control factory amp
- Does not harness correctly to BA factory amp

Ease of use

This was soooooo easy and everything works. I can not imagine the birds nest and failures I would have had trying to get this to work the old way I would install head units. Especially with all the new integrations of newer vehicles.

thanks

Wonderful product. Easy to install. No programming to do, just set the swc switch to radio brand and it works. Spent 160 dollars on similar kit that wouldn't work with my infinity system, but this one is simply plug n play and half the price when purchased with my JVC deck!!

Pros:Easy to install and set up

Cons:Couple of undefined wires in harness, but crutchfield cleared that up for me in about 10 seconds.

PAC RP4-CH11 Factory Integration Adapter

Seems to work perfectly. Sort of intimidating at first since not all of the wires were used between this, the radio, and my car. However, I called tech support and they were able to tell me which connections would not be used, so I felt better about having "leftovers". Used with the Posi-Products Connector Kit, which made connecting the wires really easy.

Good

Cons:First one was dead, and about 50% of the time when I start the vehicle I get a decent volume pop sound. This is caused by the radio turning on before the PAC fully initializing. So the radio is putting out a signal, and THEN your speakers kick in once the PAC begins working...kind of annoying, but it's not too bad.

Needs better instructions

Once finally installed the features are working but getting to that point was not easy. The limited instructions just don't provide enough information to allow for easy assembly and installation. i finally made it thought by carefully tracing every circuit on a wiring diagram

Pros:Adds wanted features like steering wheel control to the radio.
Outstanding technical support when needed. Courteous and patient.

Cons:Complicated assembly of the wiring harness. Better instructions would help.

PAC RP4-CH11 needs 911

One of my biggest regrets of my life was buying the PAC rp4-ch11. Nothing but issues and my radio controls still don't work on my steering wheel. Shorts, blown fuses, returns, ect and it cost this much. Find something else to spend your money on, anything else.

Pros:None

Cons:Takes up a lot of space, when the fuse blows it's have to radio out to change it, first one ordered developed a short in the power wire, very expensive, never worked correctly

Easy kit!!

Incredibly easy install!! Used with my Alpine receiver. I did all the wiring connections on each piece before I even started in my Jeep. Once the wires were done, I plugged in the steering Wheel controls and the factory plugs. All done!!

Works like it should

After just a little decoding/deciphering of the included wiring map, I got everything connected as good as I could gather, and when I hooked up the deck (Kenwood) in the Jeep, I wasn't getting a signal to "turn on" the deck when the ignition was on. After a quick call to Crutchfield, it was determined that I had guessed wrong on the ignition connection, since the Kenwood instructions didn't exactly match the PAC wiring diagram. No big deal, corrected the connection, and now my steering wheel controls work just as before.

Pros:Allows retention of steering wheel controls as well as factory stereo connector, so I can easily reinstall the factory unit if I trade/sell the vehicle,

Cons:Wiring diagram requires a little more experience than this novice had, but Crutchfield can help you figure it out.

Fader still worked in a 2014 Jeep Wrangler with a slight work around

Worked for me, BUT I had to do some trouble shooting. I have a 2014 Jeep Wrangler Unlimited. When I first installed this adapter for my new Pioneer stereo the fader and balance was going to the wrong speakers. I called PAC and they asked me if I had the factory amplifier. I told them I was not sure and he suggested to run a tone to each speaker from the factory wiring harness. I went old school and grabbed a 9v battery and scratched the PAC harness wires to each of the corresponding speakers on the factory wiring harness. Front right, Front Left, Rear Left, Rear Right. I got a response from all but the FRONT RIGHT. He said that meant I have the factory amplifier. He then told me to take the FRONT speaker leads from my new stereo and connect them to REAR leads of the PAC harness. I would LOSE speaker fader(front to rear) of my new Pioneer AVH-X5500BHS. After hanging up with PAC I started thinking and simply connected the Pioneer front left, rear left, and rear right, leads to the corresponding PAC harness front left, rear left, and rear right. Do NOT connect the PAC front RIGHT wires. Run a speaker wire from the FRONT RIGHT of your new stereo directly to the RIGHT FRONT speaker. It was a simple fix and I have full fader front to rear and balance right to left control of my stereo.

Flawless!

Had to buy this harness to install a new JVC headunit in my 2011 Jeep Wrangler. Installation was straightforward except one thing I wasnt sure of. After a call to Crutchfield everything was fine. Tech support is excellent! All functions including steering wheel controls work as they should.

Pros:Easy to understand instructions, works flawlessly.

Cons:Price. Way to expensive for what it is. But you get it half price when you order a headunit at the same time.

Excellent!

This unit comes with 2 factory wire looms(you only use the one that mates up to your factory harness) and its pretty much plug and play with new Pioneer unit,did not have to splice any wires from factory harness only had to splice wires together from new unit(Pioneer) to module color coded pig tails,set module to 7 for Pioneer and away we go without the need for any programing. Works perfectly!

Pros:Did not have to cut factory harness, no need for programing,works right out of box!

Just what I needed.

Allowed me to keep full functionality of my steering wheel controls in my '05 Grand Cherokee. Though I had to give in and take it to another retailer to install. *Wire stripping and coupling and all that stuff required. *

Pros:Worked as advertised.

Cons:Would recommend taking it somewhere to have someone install for you if unfamiliar car audio wiring and what-not.

Worked great 2012 Dodge Avenger

The PAC worked great in my 2012 Dodge avenger, was just like splicing in any normal harness. Instructions were pretty easy to follow and had no problems after install, i was able to keep my steering wheel controls which is a big plus and i did not have to visit a dealer at all to reset any codes. Highly recommend using this product

Flawless

This little gem does exactly what it says it will -- I didn't even have to program it. Just match up the head unit harness wires to the wires on this unit and bamm, it's done. Plug and play. It automatically detected my car and controls and made installing a full unit about a 20 minute job.

Pros:Ease of use

Cons:Expensive but necessary -- still a great value when purchased from Crutchfield. Super expensive elsewhere.

Decent adaptor, worked for my vehicle

This item worked as advertised, allowing me to retain the steering wheel controls in my 2013 Wrangler Unlimited Sahara. The instructions were uneccesarily vague, so took a few readings to really understand that I didn't need to program anything. Once I determined that it was simply pick the right harness and start splicing wires. It is a bit bigger than I had hoped for, about the size of a component set crossover, but was still able to fit behind the headunit in the dash cavity. It did force me to install the Alpine power pack behind the glovebox, though, as there was definitely no longer enough room behind the deck. Take your time and you will be fine.

Pros:Allows retention of steering wheel controls without any complex programming.

Cons:Instructions not well designed, unit is a bit bigger than I expected.

Almost perfect, needs easier method to upgrade firmware

This unit does exactly what it says, and is worth the price to be able to keep your steering wheel controls. (Though I'd like to see some cheaper competitors in this space - microcontrollers to do this kind of thing aren't expensive) However, this unit came to me with older firmware that doesn't allow programming of short keypress and long keypress commands. And unfortunately, upgrading the firmware requires special hardware. I plan on contacting Crutchfield to see if they can help me, but the fact that this is needed is just ridiculous. They could easily put a microUSB port on this thing and provide firmware updating software that could be run from a PC. The requirement for special hardware is a completely unnecessary pain. If nothing else, PAC should ship these with the latest firmware, so customers don't have to deal with this.

Works perfectly!

Was shocked how easy this made installing a new stereo in my Jeep wrangler JK. No need to cut or splice any factory wires, just match the wires to the ones on the aftermarket stereo (match the colors except for the ones not needed) and then it's basically plug and play. Was able to retain my steering wheel controls no problem. Couldn't be happier!

Works as advertised

Works as advertised, but instructions are a bit confusing at first. Finally figured it out on my own and got it wired up correctly with zero glitches. A bit pricey to buy for just the volume controls on the steering wheel...

Pros:Works well once wired in. No problems with it so far (only installed for 24 hours).

Cons:Instructions lack some detail that could've been more helpful (ie: better diagrams and better descriptions of what wire goes to what (one actually labeled red power wire as an accessory wire rated at 1A supply))

PAC Adapter

Easy to wire up, and if you need any help just call tech support. I did to confirm that I had done it all correctly. Programming seems confusing, but when you get it down it's pretty simple. I also called support for this. Works Well.

PAC RP4-CH11 Wiring Interface

Product wired up fast and very easy. Losing steering wheel controls when the buttons are on the back of the steering wheel can be extremely annoying. Instructions were easy to read and work through. I will buy another one for my next vehicle also. Good product.

PAC RP4-CH11 Wiring Interface

This interface is perfect!! It does what is says it does and there's nothing better than that. I'm tired of buying stuff that hardly meets expectations. But the PAC rp4-ch11 works flawlessly I highly recommend it. Installed it in my 2013 jeep wrangler unlimited.

Not bad, just make sure you ask about bluetooth calls

Wiring diagram was easy to follow. I hooked everything up correctly. As it states it disables fading from front to rear. So if you plan on using the bluetooth to make calls, contact tech support to see if you need to wire the front speakers to the back speakers and vice versa as someone else mentioned in the reviews. Once you do that it works great!!

Pros:Easy to install.

Cons:Should be INSTRUCTIONS for people using Bluetooth to make calls that you may need to wire the speakers differently

I almost had a problem

I had trouble with this when I got everything hooked up. Called Crutchfield support and after several attempts we decided the PAC unit might be bad. Support quickly arranged for another to be sent. While removing the installed one I noticed there was a pin bent on my factory side wiring harness. Straightened it out and it worked perfectly. Thanks to Crutchfield support for the help even though I had a vehicle issue. Now resolved this works as intended.

No problem mon.

Works great with my 2005 Jeep Grand Cherokee with Boston Acoustics Sound System & Pioneer DEH-X8500BH. Took about 10 minutes to wire up. Make sure if you have a factory amplifier to follw the instuctions & wire the rear speakers to the front & vise vursa otherwise you will not hear anything when making phone calls.

Great Interface

I used the PAC RP4-CH1 Interface with my Pioneer AVH-X1500 in my 2011 Jeep Grand Cherokee Laredo. Connecting the wires was straightforward and I've never done any type of audio install or wiring before. My factory steering wheel buttons all work as they should. I did not need to program this Interface, I simply had to turn the little dial to a certain number according to the brand of receiver. The interface itself is small and there is no problem with fitment behind my receiver.

Pros:Simplicity of installation, Performs as it should

Cons:Sometimes if I quickly hit the volume up/down button on my steering wheel multiple times my receiver will recognize all but one sometimes two levels of volume change. Not sure if this is because of my receiver or because of this interface

Just Works

I had to just connect the wires by following the color codes and the instructions that came with the unit. Had to do nothing else and everthing works as it should. I just needed some clarifications from the Crutchfield tech support and that was it.

PAC RP4-CH11 Wiring Interface

Installed double din in my 4th gen ram. This interface was very easy to hook up and gave me the 12v power lead the unit needed and also the reverse and parking brake lead. This interface was easy as pie and made for a clean headache free install. Well worth the money.

Pros:Gives 12v, reverse, and parking brake lead. Very easy to hook up and also made the steering wheel controls work flawlessly. Made install very easy.

Awesome Product

Absolutely great product. Worked flawlessly. Just wired it in, turned the dial to the number designated for my reciever brand and boom done deal. All my steering wheel controls did exactly what they did before with my factory reciever. I thought it was a little on the pricey side when I bought it, but after installation and use would definitely purchase this product again for its ease of install, no programming, and functionality.

Does just what it says, though included instructions could be clearer

I used this to replace the bottom-of-the-line OEM CD/radio in my wife's 2011 Dodge Grand Caravan with a JVC KD-A735BT. There are two harnesses included with the RP4-CH11, and you have to remove your OEM deck to find out which one you need to use. If you have the same vehicle and the same OEM deck, then I hope I can save you a little time by telling you that I needed harness "B" -- the one with the slightly bevelled bottom corners -- rather than "A," which is strictly rectangular. For me, part of the convenience of using a wiring harness is that you don't have to remove the OEM deck until you're ready to pop in the new one; it drastically increases the Wife Acceptance Factor. Having to remove the old deck first was an annoyance I'd rather have avoided.

The included wiring instructions are a bit unclear. At first, the wiring diagram made it look like I'd still have to cut into the factory wiring to connect the new deck to the speakers. This is NOT the case, as a few moments' further reading, and a look at the product details page on Crutchfield, confirmed. I used the Posi Products wire harness connectors (you screw them together instead of crimping or soldering) to connect the deck's wires to the RP4-CH11's wires, and all the steering wheel controls Just Worked when I plugged the deck into the vehicle.

I also recommend foam tape (Hushmat Quiet tape in my case) for preventing the wiring harness from rattling. Wrapped the Posi connectors and other hard plastic bits with it.

Pros:Does what it says on the box: preserved the steering wheel controls perfectly